package thinkinginjava.container;

import java.util.Collections;
import java.util.Hashtable;

public class HashtableDemo {
	public static void main(String[] args) {
		Hashtable<String, String> ht = new Hashtable<String, String>();
		ht.put("a", "abc");
		ht.put("a", "abcd");
		String e = ht.get("a");
		System.out.println(ht.size());
	}
}
